Synchrotron Emission From Protostellar Jets

ADRIANA R., RODRÍGUEZ K.; OTROS

Cargèse

Taller; International Cargèse School on Astrophysical Jets; 2016

INSTITUT D'ÉTUDES SCIENTIFIQUES DE CARGÈSE

Synchrotron emission from jets of young stellar objects (YSO) is a phenomenon that has been detected only very recently. Non-thermal emission in some protostellar jets has only been detected through negative spectral indices, with the exception of HH 80-81 (one of the most powerful and bright jets known) for which, also, linearly polarized radio emission was detected. It was proposed that synchrotron emission is produced by particles accelerated up to relativistic velocities in strong shocks of the jet with the dense envelope surrounding the protostar. Particle acceleration has been studied in several astrophysical systems (AGN´s, microquasars, SN, massive binaries, etc.), nevertheless, in YSO is a fairly new phenomenon. At present there exist several YSO´s candidates to present synchrotron emission. In this work we present the first results of a observational campaign with the JVLA to study synchrotron emission from a sample of protostellar jets. Here, we present the analysis of high sensitivity continuum and linearly polarized images at several frequencies of two of the most characteristics non-thermal protostellar jets (HH 80-81 and the Triple Source in Serpens).